Old Slaymaker Rustless padlock

I bought this old slaymaker rustless padlock at a locale antique store awhile back for $2.00. Im looking for the manufacturing year and any other information.

Its says Slaymaker rustless on the front, it also says made in USA on the back.

(Please leave any comments or information about this padlock)

This is the cheap version of the Slaymaker warded padlock probably made in the early 1970's. It is worth about what you paid for it.....it has very little collector's value. BTW, the key is not original.

Cheers, Mike D~C/